SOLUBLE SALT DAMAGE TO THIN BITUMINOUS SURFACINGS OF ROADS AND RUNWAYS

Damage to thin bituminous surfacings of roads and runways from soluble salts has been reported in warm climates by authors from Western and South Australia, South Africa, India, North America, Middle East and more recently, North Africa, Chile and Zimbabwe. This paper introduces the physicochemical factors not previously considered essential to understanding the salt damage mechanism and reports the development and results of a laboratory testing program simulating salt damage under conditions similar to those where damage was reported in the construction of an airfield in the West Indies. These studies have introduced an improved understanding of the important relationship between salt types, migration, crystallisation, climate and construction practices. This will enhance the setting of criteria for salt damage prevention for thin bituminous surfacing. (Author/TRRL)

• Record URL:
  http://arrbknowledge.com
• Availability:
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• Corporate Authors:

  ARRB

  Melbourne, Victoria  Australia 
• Authors:
  • Obika, B
  • FREER-HEWISH, R J
• Publication Date: 1990-12

Media Info

• Features: References;
• Pagination: p. 24-41
• Serial:
  • Australian Road Research
  • Volume: 20
  • Issue Number: 4
  • Publisher: ARRB
  • ISSN: 0005-0164

Subject/Index Terms

• TRT Terms: Air bases; Bituminous materials; Climate; Laboratory tests; Loss and damage; Physicochemical properties; Salts; Simulation; Soluble salts; Surface treating
• Geographic Terms: Caribbean Area; West Indies
• Old TRIS Terms: Bituminous surfacing
• ITRD Terms: 4993: Bitumen emulsion; 4955: Bituminous materials; 3666: Construction method; 7194: Crystallisation; 4983: Cut back bitumen; 1614: Damage; 5907: Degree of saturation (mater); 7183: Evaporation; 2944: Flexible pavement; 4053: Geology; 7314: Halide; 6237: Laboratory (not an organization); 5920: Moisture content; 5921: Permeability; 7332: Salt (chem); 9103: Simulation; 2972: Surfacing; 6722: Temperature; 6288: Test method; 5933: Thickness; 2545: Weather; 8126: West Indies
• Subject Areas: Highways; Pavements;

Filing Info

• Accession Number: 00620355
• Record Type: Publication
• Source Agency: ARRB
• Files: ITRD, TRIS, ATRI
• Created Date: Mar 31 1992 12:00AM